The final couples each reprise a favorite dance they performed during the season, then perform a no-holds-barred freestyle to a special holiday-themed song; one couple takes home the Juniors Mirrorball trophy.
When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline to cause such a shift. However, things quickly go from bad to worse when they present their case to Team Flash and the gang doesn’t believe them. Barry and Oliver realize they need Supergirl’s help and travel to Smallville on Earth-38 where they end up meeting Kara’s cousin, Clark Kent, and intrepid reporter, Lois Lane. The crossover continues on Arrow S07E09 Elseworlds (II) and Supergirl S04E09 Elseworlds (III).
On the planet of Ranskoor Av Kolos, a battlefield, a conflict-scarred survivor, and a deadly reckoning await the Doctor, Ryan, Yaz and Graham.
An elaborate bank heist to steal a single safe deposit box held by Veronica Stephens, a Navy contractor, leads NCIS to investigate her corrupt consulting firm.
The battle is on when some angsty teenagers take over Louise, Gene and Tina's usual sledding territory, inciting an epic turf war. Meanwhile, Bob steps in to help Linda, who's in a time crunch to get three scarves knitted before Christmas.
Elizabeth and Jay work to keep an historic agreement between Serbia and Kosovo from falling apart, after a mass grave is discovered in Serbia dating back to the Kosovo war. Also, Henry deals with a bizarre encounter with Secretary of Defense Gordon Becker.
While hiding in Howard’s life, Howard Prime must avoid detection at home and at the OI. Quayle and Clare struggle to adjust to their new arrangement.
Jamie and Claire are surprised when Lord John Grey drops in on Fraser's Ridge with an unexpected traveling companion. When Grey takes ill, Claire must reconcile her personal feelings with her duties as a doctor.
With Ray’s work on Anita’s campaign getting in his way, Mac lays all of his cards on the table. Knowing what his friend is facing, Ray must choose where his loyalty lies. Terry and Daryll bring Bunchy home to Boston to get in touch with their roots. Mickey considers the great white north.
While the gang do battle with one of their own, they're forced to face some home truths. But that's not all they learn – did they have Zeb all wrong?
Berlin Station follows up on the evidence Kirsch brought home from his mission, crystallizing their theory about a possible upcoming invasion.
When the God Account sends Miles the name of one of Arthur’s parishioners, a single father who recently lost his wife, the similarities to their own loss reopens old wounds. Also, Rakesh and Cara hunt down a new lead on the reclusive hacker they think may be behind the God Account.
A family of entrepreneurs from South Carolina, and Alabama, present a product that satisfies a unique obsession; a husband and wife from New Jersey introduce their subscription service that makes meal time for kids stress-free for parents; an entrepreneur from California pitches his Bollywood-inspired dance fitness program; and a husband and wife from Texas give the Sharks a taste of their probiotic beverage.
The Kilchers mobilize a major sea/land effort to help finish Grady's Perl Island cabin build, under threat of the approaching remnants of a typhoon; Charlotte and August build a cat patio to keep their house cats from killing the local animals.
One of Rel's patients is prejudiced and Rel is conflicted on how to behave as his attending nurse. Meanwhile, Brittany, Nat and Dad hang out at Frances', where everyone is obsessing over Brittany's ex-boyfriend's awful new rap song.
Tracking a caribou herd, Heimo's daughter Krin and her husband Scott are out to prove they can make it in the refuge. Tyler and Ashley look to make a major improvement running water in their cabin.
Declan Donnelly and Holly Willoughby present the celebrity survival challenge, as the famous faces' ordeal in the Australian jungle draws close to its conclusion. The pair offer viewers one last chance to catch up with the surviving contestants, all of whom will have their hearts set on being named King or Queen of the Jungle
With her friends by her side and her ruby slippers on her feet, Dorothy follows the Yellow Brick Road toward magical mischief and embarks on exciting adventures that only a land like Oz can bring.
The new energumen, Jae Moon runs away from the hospital, and the members of 634 Regia try their best to catch him. Father Moon senses something dangerous and asks Eun Ho to take a leave and stay away from the hospital. Meanwhile, Eun Ho receives a call from her fellow doctor, Tae Hyun, and heads to the hospital in the middle of the night.